[PATCH] Fix S_DAX setting in __blkdev_get

This is a continuation of the HIPRI series [1]. I've dropped the HIPRI
flag patch for now to investigate how to have HIPRI reads and/or writes
in a similar method.

This patch is mainly to try and fix S_DAX setting in __blkdev_get.

[1]: http://lists.infradead.org/pipermail/linux-nvme/2016-May/004606.html

Jon Derrick (1):
  block: Fix S_DAX inode flag locking

 fs/block_dev.c | 31 ++++++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 5 deletions(-)

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1.8.3.1